search for: euqals

I have the following ActiveRecord objects: class Recipe < ActiveRecord::Base has_many :ratings, :dependent => true . . . end class Rating < ActiveRecord::Base validates_uniqueness_of :created_by, :scope => :recipe_id belongs_to :recipe, :counter_cache => true . . . end The created_by field on Rating is implemented as a "magic" field similar to this:

Hi There, Using t.test to test hypothesis about which one is greater, A or B? where A={10,20,30},B={25,30,15}. My question is which of the following conclusions is right? #################hypothesis testing 1 h0: A greater than or equal to B h1: A less than B below is splus code A=c(10,20,30) B=c(25,30,15) t.test(c(10,20,30),c(25,30,15),alternative="less") output: p-value=0.3359

Hi ZFS Team, I have a couple of questions... Assume that the maximum slab size that ZFS supports is x. (I am assuming there is a maximum.) An application does a (single) write(2) for 2x bytes. Does ZFS/COW guarantee that either all the 2x bytes are persistent or none at all? Consider a case where there is a panic after x bytes has gone to disk and the change propagated to the uber block. Do

hi folks! once again i am trying to decode a yuv_buffer to a 24 bit RGB buffer. last time nobody seemed willing to tell me how to do this, so i am trying again. i try to make my questions more simple. what i need to know is: how many bytes are in each y, u, v array? what for are these strides? what exactly is a "plane" in a frame, and what does it do? what i want to achieve is

Hi, I'm a beginner in the field, I have to perform the ridge regression with lm.ridge for many datasets, and I wanted to do it in an automatic way. In which way I can automatically choose lambda ? As said, right now I'm using lm.ridge MASS function, which I found quite simple and fast, and I've seen that among the returned values there are HKB estimate of the ridge constant and L-W

Hi all I have read the lartc manual, I have read the some faqs but still don''t know how to achive the following: I have a 512kbps line which I share with 8 customers. Now what I have is everyone gets max 64kbps. That''s fine. DEV=ath0 DEV_MAX_RATE=6mbit DEV_RAT_LOW=64kbit DEV_RATE_HIGH=128kbit tc qdisc del dev $DEV root tc qdisc add dev $DEV root handle 1: cbq avpkt 1000

Hi guys, I've a problem by one of our replicated volumes. When i look on both bricks the size of them are euqal but if i take a look into the gluster quota informations 'gluster volume quota xxx list' i get a wrong usage size. I can't see any errors on my glusterfs or brick logs. Do anyone have a hint ? Cheers Heiko -- System Wizard anynines.com

Dear all: Described below is a large data set problem (data size > 2G after unzipping, table delimited). I know R is not the appropriate tool for such task, anyway I did it on a server and get some straightforward problems. 1. The first is count.fields can count all the rows, however, when I tried to remove rows beyond 3/5 of the data,R says subscripts out of bounds, is there any option